A control method and device for an extended-range automobile engine, and an extended-range automobile
A technology of automobile engine and control method, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve the problems of improving NVH performance, lack of good engine control strategy, etc., to achieve the effect of improving NVH performance and improving NVH performance
Active Publication Date: 2019-05-03
BEIJING ELECTRIC VEHICLE
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[0003] The technical problem to be solved by the present invention is to provide a control method and device for a range-extended vehicle engine and a range-extended vehicle, so as to solve the problem in the prior art that there is no good engine control strategy to improve NVH performance in a range-extended vehicle
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[0034] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0035] The impact of the engine on the NVH performance of the vehicle is mainly reflected in the speed. The control method and device of the extended-range vehicle engine and the extended-range vehicle according to the embodiments of the present invention mainly study the matching between the NVH performance of the whole vehicle and the engine speed.
[0036] refer to figure 1 As shown, the control method of the extended-range automobile engine of the embodiment of the present invention includes:
[0037] Step 101, acquiring the current state of charge SOC value and current vehicle speed information of the vehicle battery.
[0038] Here, the current SOC value of the battery may be acquired through a BMS (Battery Management System, battery management sy...
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The invention provides a method and device for controlling an extended-range type automobile engine and an extended-range type automobile, and relates to the technical field of automobile control to solve the problem that a very good engine control strategy for promoting NVH (Noise Vibration and Harshness) performances does not exist in the extended-range type automobile in the prior art. The method comprises the following steps: acquiring a current SOC (state of charge) value of a battery and current speed information of an automobile; determining the maximum limited revolution speed of the engine according to the current SOC value and the current speed information; and controlling the revolution speed of the engine according to the maximum limited revolution speed of the engine. According to the scheme of the invention, the SOC value of the battery is combined with the speed to limit the revolution speed of the engine so as to achieve an aim of improving the NVH performances of the entire automobile.
Description
technical field [0001] The invention relates to the technical field of automobile control, in particular to a control method and device for an extended-range automobile engine and an extended-range automobile. Background technique [0002] There are many factors affecting vehicle NVH (Noise, Vibration, Harshness, noise, vibration and harshness) performance, among which the engine has a great influence on vehicle NVH performance. For traditional fuel vehicles, since the operation of the whole vehicle is greatly affected by the engine operating conditions, the improvement of NVH performance by controlling the engine operating conditions has relatively large limitations. In the extended-range vehicle, the operation of the whole vehicle is less affected by the engine operating conditions, so the NVH performance can be improved by optimizing the engine strategy. But at present, there is no good engine control strategy to improve NVH performance in extended-range vehicles. Cont...
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IPC IPC(8): F02D29/02
CPCF02D29/02F02D2200/50F02D2200/501
Inventor 周金龙易迪华秦兴权陈平王金龙金硕崔天祥
Owner BEIJING ELECTRIC VEHICLE